SERVICE MANUAL
Contents
1. TX BOARD Scis LED BOARD IF230R L RF AMP cu C8 C7 A 54r 20 ae ee 5 Ll dL o TAV 5 3M l V 0 01 A e mm R97 T 5 0 ET p4 l AW l OSC FRQUENCY R9 l eee EMITTER 9 PAL5815 as CL11 Sir 25617405 ERE 4 k lac Se 92 J ii T CLI3 E aT o DALSBIS 50V Na M o co AI N l B RIZ A 4 5 5 5 5 0 6 DALS815 si E 1h 4 T C AGC VCC L CH A l R OF Les AW Ed pu Josy ROUT R K L R _ R CH C is ay MIX AMP AUTO OFF T C GNO OUT IC11 AUDIO Q12 52 lt 3 z Q o a ne Q12 Q52 Na N AI MUBULATOR 2503377 253377 PRIVE l n A N z M ih 2 L ciz 011 CL54 T 2200p 25A933S RT4 e TA K b P CLA l 0722 Dess 0 4 0 5 0 57 R52 R2 4 n 50V Pcp EZ 470 gt set RVI R94 m us 100k n P TJ o Cohn D xi CL52 CLI C95 2 7K CLI5 CL55 OSC FRQUENCY 0 1 T ka RIB R58 L CH 2 3MHz i Dos UJ e z ls L l LEVEL R14 VRE OUT R16 D4 eet e 50k 7 15k DALS815 Hes ABL aw p LENPHASIS gt VCO FPI BUFFER f 470 by ti l 540 C LOUT L K L R ICH JZ AGC m oe es VCO BUFFER TA2061AF j aq 19 l l l l l2. Voltages are taken with a VOM Input impedance 10 MQ EM Pe PM s Voltage variations may be noted due to normal produc 2r au 3 58 78 tion tolerances o T EG LL gt N C1 O NOTE e XX X mean standardized parts so they may have some difference from the original one SECTION 3 EXPLODED VIEW supplied tems marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items Ref No AOUN ca C1 IF230R Part No 4 995 960 01 X 4947 816 1 1 669 729 11 7 685 104 19 4 979 841 01 _ _ _ V not supplied _ inc id Remark Description CABINET UPPER IF130 CABINET UPPER ASSY IF230R CHARGE BOARD IF230R SCREW P 2X6 TYPE2 NON SLIT COVER SWITCH IF230R A 4542 502 A TX BOARD COMPLETE IF130 A 4542 505 A TX BOARD COMPLETE IF230R not supplied XN N 1 N sS SAA x V ill Ref No B 45 ma CO CO CO The mechanical parts with no reference number in the exploded views are not Part No X 4948 069 1 X 4949 960 1 4 984 729 01 4 979 840 11 4 995 961 01 4 987 261 01 4 900 350 01 Description Remark CABINET LOWER ASSY IF230R CABINET LOWER ASSY IF130 FOOT RUBBER CABINET LOWER IF230R CABINET LOWER IF130 TERMINAL BATTERY IF230R TERMINAL C
3. E2305 Es OT NU UL We X5 R57 E Qr ME D l IE 70x Fiw SL 170 0 01 Tey TE 9 Di A qas RI Q51 53 4 k CD Ore BTCIIAYS TP Nog 6 4 ix a alee a B 25 17405 ph 1C91 D F120 981250P6 2 ON OFF E L e dq i sf A 2580 Q51 CL91 JW9 2 5 l T aa 25A9335 RT I C91 R59 4 5V REG t b F Q92 R54 Eoo o ATATI4ES TP A 0 8 S E Bi B SWITCH 1 NE e rA Y pud ee d d 2 gt G o4 WI a Ji e e CL94 2 3 LL __ __ ____ G CNI e IC BLOCK DIAGRAM 820 e iai IC11 TA2061AF EL D101 BATTERY T n 5M2512 R102 NICKEL CABMIUM tk 2 te R101 680 CHARGE 82 T iua zm oS T T 2 2 TE H Ww NC AA HJ e S 26 z 2 e 2s UT 1 2V 16 15 4 13 12 D D 9 02 Note All capacitors are in uF unless otherwise noted pF uuF Signal path 50 WV or less are not indicated except for electrolytics D AUDIO EMPHASIS and tantalums E HRF gy c Lout L Ke L R e All resistors are in Q and 4W or less unless otherwise es ine specified ane did m e indicates tolerance EMPHASIS e LEZI adjustment for repair Power voltage is dc 9 V and fed with regulated dc power supply from external power voltage jack J4 Voltages are dc with respect to ground under no signal conditions 1 2 3 4 5 L S G
4. SECTION 1 ELECTRICAL ADJUSTMENT IMR IFISO IF230OR 1 The adjustments should be performed in the order given 2 The adjustments and measurements should be perfomed for both A E P Mo de L ch and R ch unless otherwise indicated L ch adjustment should be completed before performing R ch UK Model Maen OSCILLATING FREQUENCY Adjustment Procedure No signal state 1 Connect the frequency counter to TP CL4 L ch and TP CL 54 R ch 2 Adjust with RV1 L ch and RV2 R ch so that the reading on the frequency counter becomes the specified value Specified Value 2 3MHz 2kHz Illustration TMR IF230R RV2 2 8MHz 2kHz Connection Points and Adjustments Location frequency counter TMR IF130 is the component model block one in MDR IF130K TMR IF230R is the component model block one in MDR IF230RK COMPONENT MODEL NAME FOR MDR IF130K IF230RK TX BOARD Conductor side MDPHET30K MDR IF230RK Cordless Stereo Headphones MDR IF230 MDR IF230 Transmitter TMR IF130 TMR IF230R SPECIFICATIONS General Modulation system Frequency modulation Carrier frequency Right 2 5MHz Left 2 3MHz Frequency response 18 22 000Hz regulated dc power suppluy Power source DC IN 9V jack accepts power supplied from the AC power adaptor for use on the following voltages Operating voltage UK model 230 240V AC 50Hz AEP model 220 230V AC 50Hz Audio input Phono jacks stereo mini jack Dimensions Appr
5. RESISTOR C97 1 163 031 11 CERAMIC CHIP 0 01uF 90V R101 1 216 045 00 METAL CHIP 680 5 1 10W lt CONNECTOR gt IF230R R102 1 216 023 00 METAL CHIP 82 5 1 10W CNI 1 506 984 11 PIN CONNECTOR PC BOARD 2P IF230R IF230R R103 1 216 045 00 METAL CHIP 680 590 1 10W IC IF230R R104 1 216 047 91 RES CHIP 020 590 1 10W IC11 8 759 497 48 IC TA2061AF EL IF230R IC91 8 59 095 60 IC S 81250PG kk K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K K KK K K K K K K K K K K K K K K K K K K K K K K lt JACK gt 1 669 728 11 LED BOARD ere Ji 1 764 270 11 JAGK STEREO MINIATURE DIA 3 5 AUDIO IN B DIODE J2 1 784 910 21 JACK PIN AUDIO IN A L CH J3 1 784 910 11 JACK PIN AUDIO IN A R CH D1 8 19 992 13 LED LIRSBE INFRARED EMITTER J4 1 778 380 11 JACK DC POLARITY UNIFIED TYPE D2 8 19 992 13 LED LIRSBE INFRARED EMITTER DC IN 9V D3 8 19 992 13 LED LIRSBE INFRARED EMITTER D4 8 19 992 13 LED LIRSBE INFRARED EMITTER TRANSISTOR kk aa K K K K K K K E KE K K KE K K KE K K K K K K K K K K K K K K K K K K K K K K KK K KK K K K K K K K K K K K K Q11 8 729 119 76 TRANSISTOR 2SA1175 HFE i A 4542 502 A TX BOARD COMPLETE IF130 Q12 8 729 024 00 TRANSISTOR 2563377 QR i A 4542 505 A TX BOARD COMPLETE IF230R Q13 8 729 119 78 TRANSISTOR 25G403SP 51 PE E E E SIUE QM Q51 8 729 119 76 TRANSISTOR 2SA1175 HFE Q52 8 729 024 00 TRANSISTOR 2563377 QR CAPACITOR Q53 8 729 119 78 TRANSISTOR 25G403SP 51 C1 1 126 963
6. 11 ELECT 4 7uF 20 50V Q92 8 729 422 57 TRANSISTOR UN4111 C2 1 126 786 11 ELECT 47uF 20 16V Q93 8 729 029 72 TRANSISTOR DTC114YS TP C3 1 126 157 11 ELECT 10uF 20 16V C6 1 163 031 11 CERAMIC CHIP 0 01uF 90V RESISTOR C7 1 126 963 11 ELECT 4 uF 20 50V RI 1 216 130 00 RES CHIP 3 3M 590 1 10W C8 1 126 934 11 ELECT 220uF 2090 16V R2 1 216 041 00 METAL CHIP 470 590 1 10W C11 1 124 464 11 ELECT 0 22uF 20 50V R3 1 216 113 00 METAL CHIP 470K 590 1 10W C12 1 163 031 11 CERAMIC CHIP 0 01uF 90V IF230R C13 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V R11 1 216 091 00 METAL CHIP 96K 590 1 10W C14 1 163 245 11 CERAMIC CHIP 56PF 590 90V R12 1 216 025 91 METAL CHIP 100 590 1 10W Ref No R13 R14 R15 R16 R17 R18 R19 R51 R52 R53 R54 R55 R56 R57 R58 R59 R94 R97 RVI RV2 S1 Part No 1 216 043 91 1 216 338 11 1 216 596 11 1 216 053 00 1 216 041 00 1 216 003 11 1 216 053 00 1 216 091 00 1 216 025 91 1 216 043 91 1 216 338 11 1 216 596 11 1 216 053 00 1 216 041 00 1 216 003 11 1 216 053 00 1 216 073 00 1 215 017 11 1 241 767 21 1 241 767 21 1 554 419 00 Description MET AL CHIP RES CHIP RES CHIP MET AL CHIP MET AL CHIP RES CHIP MET AL CHIP MET AL CHIP MET AL CHIP MET AL CHIP RES CHIP RES CHIP MET AL CHIP MET AL CHIP RES CHIP MET AL CHIP MET AL CHIP RES CHIP lt VARIABLERESIST OR gt RES ADJ CARBON 100K RES ADJ CARBON 100K lt SWITCH gt Rem
7. HARGE IF230R SECTION 4 ELECTRICAL PARTS LIST CHARGE NOTE Due to standardization replacements in the parts list may be different from the parts specified in the diagrams or the components e SEMICONDUCTORS In each case u u for example uA WA UPA U PA When indicating parts by reference num ber please include the board used on the set uPB u PB uPC u PC e XX X mean standardized parts so they uPD u PD may have some difference from the original e CAPACITORS one uF uF e RESISTORS e COILS All resistors are in ohms uH u H METAL Metal film resistor METAL OXIDE Metal oxide film resistor F nonflammable e tems marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items Ref No Part No Description Remark Ref No Part No Description Remark i 1 669 729 11 CHARGE BOARD IF230R C51 1 124 464 11 ELECT 0 22uF 20 50V KOK K K K K K K K K K K K K C53 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V 4 900 350 01 TERMINAL CHARGE IF230R C54 1 163 245 11 CERAMIC CHIP 56PF 5 50V 4 987 261 01 TERMINAL BATTERY IF230R C91 1 163 031 11 CERAMIC CHIP 0 01uF 90V C92 1 104 664 11 ELECT 47uF 20 16V lt DIODE gt C93 1 163 031 11 CERAMIC CHIP 0 01uF 90V D101 8 719 066 58 LED SM2512 CHARGE IF230R C94 1 104 664 11 ELECT 47uF 20 16V C95 1 165 319 11 CERAMIC CHIP 0 1uF 90V
8. ark 6 8K 5 1 10W 30K 1 1 10W 2 1K 1 1 10W 1 5K 5 1 10W 470 5 1 10W 12 5 1 10W 1 5K 5 1 10W 56K 5 1 10W 100 5 1 10W 560 5 1 10W 30K 1 1 10W 2 1K 1 1 10W 1 5K 5 1 10W 470 5 1 10W 12 5 1 10W 1 5K 5 1 10W 10K 5 1 10W 47 5 1 10W OSC FREQUENCY L CH OSC FREQUENCY R CH SWITCH PUSH 1 KEY POWER IF230R TMR IF130 IF230R 98C027546 1 Sony Corporation Printed in Hungary 1998 3 9 923 357 11 Personal A amp V Products Company Published by Quality Engineering Dept 10 Shibaura
9. ox 152 x 40 x 72mm 6 x 1 1 2 x 2 3 4in w h d TX BOARDI C omponent side Mass Approx 85g 3 00z P Design and specifications are subject to change without notice RV1 RV2 INFRARED TRANSMITTER m SONY TMR IF130 IF230R SECTION 2 DIAGRAMS 2 1 PRINTED WIRING BOARDS LOCATION Ref No Location UNFRARED EMITTER o HM M M Y 9 H H V a se t CHARGE BOARD RECHARGEABLE l BATTERV NICKEL CADMIUM NC AA HJ 0 42V pn parts extracted from the component side Pattern from the side which enables seeing TMR IF130 IF230R 2 2 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 8 9 10 11 12
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